Great St. Johnswort
Long-lived polycarpic perennial
Native to the Finger Lakes Region, Midwest to NE North America
American Indians in Wisconsin and Michigan combined the roots of this plant with other herbs to make a strong medicinal tea for treating early stages of tuberculosis.
Source of plant
Prairie Moon Nursery, Prairie Moon Nursery
Branched pernennial herb 7-15dm; leaves lanceolate to elliptic, 4-10cm, acute or obtuse, sessile and sometimes clasping; flowers few, chiefly solitary at the ends of the branches, 4-6cm wide; stamens very numerous, united at base into 5 sets; styles 5, united below but not persistent; stigmas capitate; fruit ovoid, 15-30mm, 5-locular.
USDA Hardiness Zone